The drug is taken by mouth without chewing, during or immediately after a meal, washed down with a small amount of liquid. Assign 1-2 pills 3 times a day. Higher doses prescribed by the doctor only. The dosage and dosing regimen in children determined by the physician. Duration of treatment may vary from a few days (in case of violation of the digestive process due to errors in the diet) to several months or years (permanent replacement therapy if necessary). Prior or ultrasound – 2 tablets 2-3 times a day for 2-3 days prior to the study.